[Xen-devel] [PATCH v4 05/21] acpi/hvmloader: Set TIS header address in hvmloader

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

Users other than hvmloader may provide TIS address as virtual.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 tools/firmware/hvmloader/acpi/build.c   | 9 ++++-----
 tools/firmware/hvmloader/acpi/libacpi.h | 3 +++
 tools/firmware/hvmloader/config.h       | 2 ++
 tools/firmware/hvmloader/util.c         | 4 ++++
 4 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/tools/firmware/hvmloader/acpi/build.c 
b/tools/firmware/hvmloader/acpi/build.c
index 68eb7c4..c984e5a 100644
--- a/tools/firmware/hvmloader/acpi/build.c
+++ b/tools/firmware/hvmloader/acpi/build.c
@@ -335,7 +335,6 @@ static int construct_secondary_tables(unsigned long 
*table_ptrs,
     struct acpi_20_tcpa *tcpa;
     unsigned char *ssdt;
     static const uint16_t tis_signature[] = {0x0001, 0x0001, 0x0001};
-    uint16_t *tis_hdr;
     void *lasa;
 
     /* MADT. */
@@ -388,10 +387,10 @@ static int construct_secondary_tables(unsigned long 
*table_ptrs,
     }
 
     /* TPM TCPA and SSDT. */
-    tis_hdr = (uint16_t *)0xFED40F00;
-    if ( (tis_hdr[0] == tis_signature[0]) &&
-         (tis_hdr[1] == tis_signature[1]) &&
-         (tis_hdr[2] == tis_signature[2]) )
+    if ( (config->table_flags & ACPI_HAS_TCPA) &&
+         (config->tis_hdr[0] == tis_signature[0]) &&
+         (config->tis_hdr[1] == tis_signature[1]) &&
+         (config->tis_hdr[2] == tis_signature[2]) )
     {
         ssdt = mem_alloc(sizeof(ssdt_tpm), 16);
         if (!ssdt) return -1;
diff --git a/tools/firmware/hvmloader/acpi/libacpi.h 
b/tools/firmware/hvmloader/acpi/libacpi.h
index d1e7042..70cf26b 100644
--- a/tools/firmware/hvmloader/acpi/libacpi.h
+++ b/tools/firmware/hvmloader/acpi/libacpi.h
@@ -27,6 +27,7 @@
 #define ACPI_HAS_SSDT_PM     (1<<4)
 #define ACPI_HAS_SSDT_S3     (1<<5)
 #define ACPI_HAS_SSDT_S4     (1<<6)
+#define ACPI_HAS_TCPA        (1<<7)
 
 struct xen_vmemrange;
 struct acpi_numa {
@@ -60,6 +61,8 @@ struct acpi_config {
     struct acpi_numa numa;
     const struct hvm_info_table *hvminfo;
 
+    const uint16_t *tis_hdr;
+
     /*
      * Address where acpi_info should be placed.
      * This must match the OperationRegion(BIOS, SystemMemory, ....)
diff --git a/tools/firmware/hvmloader/config.h 
b/tools/firmware/hvmloader/config.h
index a4429f4..6e00413 100644
--- a/tools/firmware/hvmloader/config.h
+++ b/tools/firmware/hvmloader/config.h
@@ -56,6 +56,8 @@ extern uint8_t ioapic_version;
 /* MMIO hole: Hardcoded defaults, which can be dynamically expanded. */
 #define PCI_MEM_END         0xfc000000
 
+#define ACPI_TIS_HDR_ADDRESS 0xFED40F00UL
+
 extern unsigned long pci_mem_start, pci_mem_end;
 extern uint64_t pci_hi_mem_start, pci_hi_mem_end;
 
diff --git a/tools/firmware/hvmloader/util.c b/tools/firmware/hvmloader/util.c
index f37b16e..8875675 100644
--- a/tools/firmware/hvmloader/util.c
+++ b/tools/firmware/hvmloader/util.c
@@ -919,6 +919,10 @@ void hvmloader_acpi_build_tables(struct acpi_config 
*config,
     if ( !strncmp(xenstore_read("platform/acpi_s4", "1"), "1", 1)  )
         config->table_flags |= ACPI_HAS_SSDT_S4;
 
+    config->table_flags |= ACPI_HAS_TCPA;
+
+    config->tis_hdr = (uint16_t *)ACPI_TIS_HDR_ADDRESS;
+
     config->numa.nr_vmemranges = nr_vmemranges;
     config->numa.nr_vnodes = nr_vnodes;
     config->numa.vcpu_to_vnode = vcpu_to_vnode;
-- 
1.8.3.1


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